1.先安装gcc-c++编译器
yum install gcc-c++
yum install -y openssl openssl-devel
2.再安装pcre包
yum install -y pcre pcre-devel
3.再安装zlib包
yum install -y zlib zlib-devel
4.下载nginx安装包
wget https://nginx.org/download/nginx-1.19.9.tar.gz
5.解压nginx
tar -zxvf nginx-1.19.9.tar.gz
cd nginx-1.19.9
6.安装nginx
./configure
make
make install
7.启动nginx
/usr/local/nginx/sbin/nginx
8.访问ip，如果能访问到nginx欢迎页，则说明nginx安装好了，否则检查80端口是否开放。
